Since my bedroom window goes out south, on sunny days I have to close the blinds during most of the day if I don't want to wear sunglasses in my own bedroom. Also, I wouldn't see anything on my screen with the blinds more open than here in this photo.

Shot with a Canon EOS 50 E (Elan IIe) with Canon 35 - 80 mm lens on AGFA Portrait 160 film.